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DG411LDY-T1-E3 Equivalent & Substitute Parts
Part Overview
The DG411LDY-T1-E3 is a 4-circuit SPST-NC (Single Pole Single Throw - Normally Closed) analog switch IC manufactured by Vishay Siliconix in 16-SOIC surface mount packaging. This component features 17Ω maximum on-state resistance, operates across 2.7V to 12V single supply or ±3V to ±6V dual supply configurations, and delivers 280MHz bandwidth with 19ns/12ns switching times. The device is classified as obsolete, necessitating equivalent substitutes for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across switching topology, circuit count, package form factor, and operating temperature range while accommodating variations in on-state resistance, supply voltage ranges, and switching performance characteristics.
Substiute Parts
Key Parameters
| Parameter | DG411LDY-T1-E3 |
|---|---|
| Manufacturer | Vishay Siliconix |
| Switch Circuit | SPST - NC |
| Number of Circuits | 4 |
| Multiplexer/Demultiplexer Circuit | 1:1 |
| On-State Resistance (Max) | 17Ω |
| Voltage - Supply, Single (V+) | 2.7V ~ 12V |
| Voltage - Supply, Dual (V±) | ±3V ~ 6V |
| Switch Time (Ton, Toff) (Max) | 19ns, 12ns |
| -3dB Bandwidth | 280MHz |
| Charge Injection | 5pC |
| Channel Capacitance (CS(off), CD(off)) | 5pF, 6pF |
| Current - Leakage (IS(off)) (Max) | 250pA |
| Crosstalk | -95dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution compatibility for the DG411LDY-T1-E3 is determined by the following mandatory parameters: SPST-NC switching topology, 4-circuit configuration, 1:1 multiplexer/demultiplexer ratio, 16-SOIC package form factor, surface mount technology, and -40°C to 85°C operating temperature range. Substitute parts must maintain these core electrical and mechanical characteristics. Variations in on-state resistance (17Ω to 45Ω), supply voltage ranges (2.7V–12V to 10V–30V single supply; ±3V–±6V to ±4.5V–±20V dual supply), switching times (19ns/12ns to 175ns/145ns), and leakage current (250pA to 1nA) are permissible within application-specific design constraints. All substitute candidates maintain ROHS3 compliance, MSL ratings of 1 or 2, and EAR99 export classification. Packaging variants (Tube, Tape & Reel, Cut Tape & Digi-Reel) are functionally equivalent and differ only in supply format.
Parameter Comparison
| Parameter | DG411LDY-T1-E3 | DG411LEDY-T1-GE3 | ADG411BRZ | DG411CY+ | DG411DY+ | DG411DYZ |
|---|---|---|---|---|---|---|
| Manufacturer | Vishay Siliconix | Vishay Siliconix | Analog Devices Inc. | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Renesas Electronics Corporation |
| Switch Circuit | SPST - NC | SPST - NC | SPST - NC | SPST - NC | SPST - NC | SPST - NC |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 | 4 |
| On-State Resistance (Max) | 17Ω | 26Ω | 35Ω | 45Ω | 45Ω | 35Ω |
| Voltage - Supply, Single (V+) | 2.7V ~ 12V | 3V ~ 16V | 12V | 10V ~ 30V | 10V ~ 30V | 5V ~ 44V |
| Voltage - Supply, Dual (V±) | ±3V ~ 6V | ±3V ~ 8V | ±15V | ±4.5V ~ 20V | ±4.5V ~ 20V | ±5V ~ 20V |
| Switch Time (Ton, Toff) (Max) | 19ns, 12ns | 50ns, 30ns | 175ns, 145ns | 175ns, 145ns | 175ns, 145ns | 175ns, 145ns |
| -3dB Bandwidth | 280MHz | — | — | — | — | — |
| Charge Injection | 5pC | 6.6pC | 5pC | 5pC | 5pC | 5pC |
| Channel Capacitance (CS(off), CD(off)) | 5pF, 6pF | 5pF, 6pF | 9pF, 9pF | 9pF, 9pF | 9pF, 9pF | 9pF, 9pF |
| Current - Leakage (IS(off)) (Max) | 250pA | 1nA | 250pA | 250pA | 250pA | 100pA |
| Crosstalk | -95dB @ 1MHz | -114dB @ 1MHz | -85dB @ 1MHz | -85dB @ 1MHz | -85dB @ 1MHz | -85dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
DG411LEDY-T1-GE3 (Vishay Siliconix, Active) provides the closest electrical performance to the DG411LDY-T1-E3 within the same manufacturer ecosystem. On-state resistance increases from 17Ω to 26Ω, and supply voltage range expands to 3V–16V single supply and ±3V–±8V dual supply. Switching times degrade to 50ns/30ns, but crosstalk improves to -114dB @ 1MHz. This part maintains ROHS3 compliance, MSL 1 rating, and full -40°C to 85°C temperature coverage. Tape & Reel packaging supports automated assembly.
DG411DY+ and DG411DY+T (Analog Devices Inc./Maxim Integrated, Active) offer extended supply voltage ranges (10V–30V single, ±4.5V–±20V dual) with 45Ω on-state resistance and -40°C to 85°C operating temperature. These variants maintain identical switching topology, circuit count, and 16-SOIC package. Switching times are 175ns/145ns. Tube and Tape & Reel packaging options are available. ROHS3 compliance and MSL 1 rating are maintained.
DG411DYZ and DG411DYZ-T (Renesas Electronics Corporation, Active) deliver the widest single supply voltage range (5V–44V) with 35Ω on-state resistance. Operating temperature range is -40°C to 85°C. Leakage current is reduced to 100pA. MSL rating is 2 (1 Year). These parts are suitable for applications requiring extended supply voltage flexibility.
ADG411BRZ and ADG411BRZ-REEL (Analog Devices Inc., Active) are manufacturer-recommended alternatives with fixed 12V single supply and ±15V dual supply operation. On-state resistance is 35Ω with 175ns/145ns switching times. These parts are appropriate for fixed-supply applications with higher voltage requirements. ROHS3 compliance and MSL 1 rating apply.
DG411CY+ and DG411CY+T (Analog Devices Inc./Maxim Integrated, Active) feature 45Ω on-state resistance with channel-to-channel matching of 3Ω maximum. Operating temperature range is limited to 0°C–70°C, restricting use in extended temperature applications. Supply voltage ranges are 10V–30V single and ±4.5V–±20V dual. Tube and Tape & Reel packaging are available.
Frequently Asked Questions (FAQ)
Q: Can DG411LEDY-T1-GE3 directly replace DG411LDY-T1-E3 in all applications?
A: DG411LEDY-T1-GE3 maintains identical switching topology, circuit count, and 16-SOIC package. On-state resistance increases from 17Ω to 26Ω, which may affect signal attenuation in high-impedance circuits. Supply voltage range expands, providing broader compatibility. Switching times degrade from 19ns/12ns to 50ns/30ns, which may impact timing-critical applications. Crosstalk performance improves. Verify on-state resistance and switching time requirements before substitution.
Q: What is the primary difference between Vishay Siliconix and Analog Devices variants?
A: Vishay Siliconix DG411LEDY-T1-GE3 offers lower on-state resistance (26Ω) and faster switching (50ns/30ns) compared to Analog Devices DG411DY+ (45Ω, 175ns/145ns). Vishay maintains narrower supply voltage ranges, while Analog Devices provides extended ranges. Both maintain ROHS3 compliance and -40°C to 85°C operation. Selection depends on on-state resistance and switching speed requirements.
Q: Are Tube and Tape & Reel packaging variants electrically equivalent?
A: Yes. Tube, Tape & Reel (TR), and Cut Tape & Digi-Reel (CT) packaging variants contain identical die and electrical specifications. Packaging differences affect supply format, handling, and automated assembly compatibility only. Electrical performance, pin configuration, and functional characteristics remain unchanged across packaging options.
Q: Which substitute part offers the lowest on-state resistance?
A: DG411LDY-T1-E3 (17Ω) has the lowest on-state resistance among all listed parts. DG411LEDY-T1-GE3 (26Ω) is the closest active substitute. If lower on-state resistance is critical, design review may be necessary to confirm whether higher resistance alternatives meet application requirements.
Q: Can DG411CY+ be used in applications requiring -40°C operation?
A: No. DG411CY+ and DG411CY+T are rated for 0°C–70°C operating temperature only. Applications requiring -40°C to 85°C operation must use DG411DY+, DG411DY+T, DG411DYZ, DG411DYZ-T, ADG411BRZ, or ADG411BRZ-REEL variants.
Q: What is the significance of MSL 2 rating on DG411DYZ variants?
A: MSL 2 (Moisture Sensitivity Level 2) indicates a 1-year floor life requirement, compared to MSL 1 (Unlimited) on other variants. DG411DYZ and DG411DYZ-T require controlled storage conditions and have a defined shelf life. For applications with extended inventory holding periods, MSL 1 parts (DG411LEDY-T1-GE3, DG411DY+, DG411DY+T, ADG411BRZ, ADG411BRZ-REEL) are preferred.
Q: Which substitute provides the best crosstalk performance?
A: DG411LEDY-T1-GE3 delivers -114dB @ 1MHz crosstalk, the best among all listed parts. DG411LDY-T1-E3 achieves -95dB @ 1MHz. All other substitutes provide -85dB @ 1MHz. For applications sensitive to crosstalk, DG411LEDY-T1-GE3 is the optimal choice.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts (DG411LEDY-T1-GE3, ADG411BRZ, ADG411BRZ-REEL, DG411CY+, DG411CY+T, DG411DY+, DG411DY+T, DG411DYZ, DG411DYZ-T) are ROHS3 compliant and REACH unaffected, matching the compliance status of the obsolete DG411LDY-T1-E3.
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